Seasonality and increasing frequency of Greenland glacial earthquakes

被引：106

作者：

Ekström, G

Nettles, M

Tsai, VC

机构：

[1] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA

[2] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA

来源：

SCIENCE | 2006年 / 311卷 / 5768期

关键词：

D O I：

10.1126/science.1122112

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Some glaciers and ice streams periodically lurch forward with sufficient force to generate emissions of elastic waves that are recorded on seismometers worldwide. Such glacial earthquakes on Greenland show a strong seasonality as well as a doubling of their rate of occurrence over the past 5 years. These temporal patterns suggest a link to the hydrological cycle and are indicative of a dynamic glacial response to changing climate conditions.

引用

页码：1756 / 1758

页数：3

共 16 条

[1]

Butler R., 2004, EOS T AM GEOPHYS UN, V85, P225

[2] Climatology - Northern hemisphere ice-sheet influences on global climate change [J].